Inhaler.



Patented May 6, |902.

E. STEVENS.

INHALER.

(Appliclaton Mod June 11, 1901.)

(No Model.)

w M MQ@ me Nonals FUER: co.4 Fuero-urna., wnsmmsrou4 D. c.

of a complete inhaler.

UNITED q STATE-s PATENT OFFICE. 'v

,ERNEST STEVENS, OF PHILADELPHIA, PENNSYLVANIA. l

SPECIFICATION forming part of Letters Patent N o. 699,255, dated May 6, 1902.

i Application filed June 11, 1901. Serial No. 64,120. (No model.) y

character in Which-the medicinally-prepared liquid is rst nebulized in the receiver and then inhaled through proper connections with the nebulizers.

My invention has for its object to provide a more perfect, inexpensive, and antiseptic connection with the nebulizer than-heretofore produced.

With these objects in View the invention consists in improvements in the maskand it connections with the nebulizer.

In the drawings, Figure l is an elevation Fig. 2 is a Vertical sectional elevation of the mask and pipe,

showing a valve'located within the pipe and also a disk-valve upon lthe mask. Fig. 3 is a detail view of aportion ofthemask, showing the openings therein. j l designates the liquidreceptacle,into which the medicated liquid is vaporized by'air' forced through the liquid by'bulb 2 and itsconnections, the atomized medicament passing in l vapor through the flexible tube 3 to the mask4 4. Mask 4. is constructed with a view to hygienic and antiseptic effect and which I will now proceed to describe. The mask is con structed of vitreous material, the facial rim 4:' being of a smooth round contour in cross-v and detachment and also contributes to the antiseptic features of the mask.

By reason of the novel construction of the mask and pipe 7 I am enabled to locate a .Valve within the pipe, forming a conical seat S- within the interior of the pipe,upon which the conical end of valve 9 may seat when the patient is exhaling, the opposite end 10 ofthe kvalve seating against the end of the mask when the patient is inhaling the medicated vapor, the end l0 being corrugatedA transversely to form passages l1 for the vapor. The exhalation may pass out of the openings 12, formed in the mask and closed by a disk 13 during inhalation by the Vacuum, but opening to the limit of its containing-frame ld'during exhalation. This latter valve is of minimum expense and being unrestrained is free to seat by vacuum or unseat by pressure, as shown in Fig. 2, wherein 'is also shown a convenient means of connecting the flexiblev hose 3 with the mask, consisting of a tapered coupling=piece 16, preferably of hard rubber, thel tapered portion being inserted frictionally into the outer end of pipe 7, pro= ducing an air-tight connection easilyuncou-4 pled or coupled, the opposite end being of a diameter to allow of stretching the flexible hose thereon to rmly connect the two.

' I form the openings 12 at the lower portion of the'mask for two reasons;first, that the exhalation may not contact Awith the eyes, as would be the'case if the exit were at the top, and,second,-that I may dispense with the disk valve 13 in some'instances, in which event the openings l2 are located at a convenient point to permitthe patient to close the same with thethumb during inhalation and allow 'escape during exhalation by removing the thumb, thus dispensing with the expense of the valve. (See Fig. 3.) .y

VIt will be understood from the foregoing that I have reduced the possibility of germ lodgment to a minimum, as well as reducing the expense of construction. Y

' It will be apparent that my attachment is adaptable to any form ofspray outfit,whether nebulizer, atomizer, or simple spray. What I claim isa In an inhaler, the combination of a nebulizer,a mask formed with a screw-threaded int ner end,a pipe screwed on the end of the mask, said pipe being reduced at its inner end, forming an internal conical valve-seat, a valve contained in the larger chamber of the pipe having,r a movement limited by the seat and the under side of the mask, substantially as 1o the inner end of the threaded portion of the shown and described. mask, a flexible connection between the mask In testimony whereof I aix my signature and the nebulzer, a tapered coupling-piece in presence of two witnesses.

5 screwed in the outer end of the oxibie couneetion, the tapered end of said eoupling- ERNEST STEVENS' piece being of e size to enter the outer re- Witnesses: duced end of the pipe and to frictionally en- MAI W. STOUT, gage therewith, and apiuraiity of openings in THOMAS FLAVELL, 2d. 

